﻿#region License

// PentaBiz - Sustainable Software Development Framework Copyright (C) 2013 Zoltán Csizmazia
// 
// This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
// 
// This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 

#endregion

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Windows;
using System.Windows.Input;
using System.Windows.Threading;
using PentaBiz.Studio.Services.Plugins.Models;
using PentaBiz.WpfTools;

namespace PentaBiz.Studio.Services.Plugins
{
    public partial class PluginManager
    {
        private readonly ICommand _closePluginCommand;

        private readonly ICommand _loadPluginControlCommand;

        private readonly ObservableCollection<PluginControlModel> _pluginControlModels =
            new ObservableCollection<PluginControlModel>();

        private readonly List<PluginTypeSelector> _pluginControlTypes = new List<PluginTypeSelector>();

        public ICommand LoadPluginControlCommand
        {
            get { return _loadPluginControlCommand; }
        }

        public ICommand ClosePluginCommand
        {
            get { return _closePluginCommand; }
        }


        public ObservableCollection<PluginControlModel> PluginControlModels
        {
            get { return _pluginControlModels; }
        }

        public PluginControlModel SelectedPluginControlModel { get; set; }


        public List<PluginTypeSelector> PluginControlTypes
        {
            get { return _pluginControlTypes; }
        }

        public void LoadPluginControl(PluginTypeSelector pluginTypeSelector)
        {
            Dispatcher.BeginInvoke(() =>
                {
                    try
                    {
                        var pluginPackage = pluginPackages[pluginTypeSelector.PluginAssemblyName];
                        PluginHostProxy pluginHost = _pluginHostProxies[pluginPackage];

                        PluginControlModel pluginControlModel =
                            pluginHost.LoadPluginControl(this, pluginTypeSelector);
                        PluginControlModels.Add(pluginControlModel);
                        SelectedPluginControlModel = pluginControlModel;
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(ex.ToString(), "Error", MessageBoxButton.OK,
                                        MessageBoxImage.Error);
                    }
                }, DispatcherPriority.ApplicationIdle);
        }


        public void ClosePluginControl(PluginControlModel pluginControlModel)
        {
            PluginControlModels.Remove(pluginControlModel);
        }


        public void CloseAllPluginControls()
        {
            PluginControlModels.Clear();
        }

        public void CloseAllPluginControlButThis(PluginControlModel pluginControlModel)
        {
            foreach (
                PluginControlModel controlView in
                    PluginControlModels.ToList().Where(p => p != pluginControlModel))
            {
                ClosePluginControl(controlView);
            }
        }

        partial void InitializePluginControls()
        {
            //register plugin control types
            foreach (var pluginHostProxy in _pluginHostProxies)
            {
                _pluginControlTypes.AddRange(pluginHostProxy.Value.GetPluginControlTypeSelectors());
            }


            _pluginControlModels.CollectionChanged += OnPluginCollectionChanged;
        }
    }
}